(39) باب فِي ذِي الْوَجْهَيْنِ
Abu Hurairah reported the Prophet (May peace be upon him) as saying:
The worst of the people is a man who is double-faced; he presents one face to some and another to others.
Reference: Sunan Abi Dawud 4872
In-book reference: Book 43, Hadith 100
English translation: Book 42, Hadith 4854